Dojo AJAX with JSON
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Published: 20 Mar 2007
Abstract
This article shows how AJAX calls are made using the JavaScript extensions developed by the Dojo foundation to retrieve data using the JavaScript Object Notation (JSON)and displaying the results on the browser.
by Jayaram Krishnaswamy
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Introduction

The DOJO toolkit is an extension of JavaScript being developed by the dojo foundation. The present release version is 0.4.1 and it is still very much in development. Notwithstanding, it has a lot of promise in delivering AJAX enabled rich internet applications. It has been used in several production sites as well.

This tutorial is about using the dojo tool kit to send a request to server and receive a JSON text using the dojo.io.bind (). The default transport for the request is the XMLHTTP. The retrieved JSON is parsed to display the hierarchy in the JSON Object.

There is a lot of background to be covered, but the reader is directed to the web based resources that describe many of these topics. These sources include the dojo foundation web site; the blogs by the key developers at that site and the JSON site at JSON.org. A new DOJO Application Programming Interface (API) is also in the works.


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